abstract |
A single phase liquid formulation useful for producing an organic charge transporting film; said formulation comprising: (a) a first polymer resin having M w less than 5,000; (b) a second polymer resin having M w at least 7,000; (c) a first solvent having a boiling point from 50 to 165° C.; and (d) a second solvent having a boiling point from 180 to 300° C. |